Output Power: 10W(5W*+2W*2) Frequency Response: 60Hz - 20KHz Channel Crosstalk: >35dB S/N Ratio: >70dB Product Size Subwoofer: L165*W219 *H180mm Satellite Speaker: L110*W105*H120mm Packing Size: L698*W390*H640mm Packing: 6set/carton Q`TY 20′: 964set 40′: 1997set 40′HQ: 2342set